Process of making fused, oriented-grain polymeric materials
US4879081A · kind A · utility
8Cited by
3References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 15, 1988 |
| Grant date | Nov 7, 1989 |
| Priority date | — |
| Expiry date | Jul 15, 2008 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29K2995/005
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A process for producing a thermoplastic material including the steps of molecularly orienting a thermoplastic material, grinding the oriented material to a particle size between about 0.01 to 10 mm and fusing the ground particulate material to substantially mutually adhere the particles thereby producing a sintered thermoplastic material. The fused product includes discrete fused particles of one or more anisotropically oriented thermoplastic polymers and exhibits isotropic increases in flexural modulus.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.